Objects in the image:
category: person
category: tennis racket
category: person
category: tennis racket
category: person
category: tennis racket
category: tennis racket
category: tennis racket
category: person
category: person
category: person
category: sports ball
category: tennis racket
category: person
category: tennis racket
category: person

Guessing-game dialogue about one of the objects:
q: a person?
a: No
q: in the background?
a: Yes
q: near the door/exit?
a: No
q: is it green?
a: No
q: is it white?
a: Yes
q: the building in the top left corner?
a: No
q: the cloudy sky?
a: No
q: the lines in the ground?
a: No
q: is it round?
a: No
q: is it small?
a: Yes
q: something that someone have on him?
a: Yes
q: a racket?
a: Yes
q: the one held by the man and the child?
a: No
q: held by the child with grey pants just behind the man?
a: No
q: held by the child with red pants just behind?
a: Yes
q: the yellow racket?
a: Yes